THERAPEUTICS

治疗学
  • 文章类型: Journal Article
    H3-K27M改变的小儿弥漫性中线神经胶质瘤(DMG)是儿童期出现的侵袭性脑肿瘤。尽管基因组知识的进步和大量的临床试验测试新的靶向疗法,患者预后仍然不足。用小分子阻断免疫检查点,如适体,正在开辟新的治疗选择,代表着这种孤儿病的希望。这里,我们证明了TIM-3适体作为单一疗法增加了免疫浸润并引发了强烈的特异性免疫应答,具有改善经治疗的携带DMG的小鼠的总体存活的趋势。重要的是,TIM-3Apt联合放疗可增加总中位生存期,并在两种儿童DMG原位小鼠模型中产生长期存活小鼠.有趣的是,与放疗后的未治疗组相比,TIM-3适体的施用增加了肿瘤微环境中骨髓群的数量和CD8:Treg的促炎比例。重要的是,T细胞的耗竭导致通过该组合实现的治疗效果的重大损失。这项工作揭示了TIM-3靶向作为一种免疫治疗方法,以改善DMG的放疗结果,并为推进使用放疗和TIM-3阻断组合作为这些肿瘤治疗的I期临床试验提供了坚实的基础。
    Pediatric diffuse midline gliomas (DMG) with H3-K27M-altered are aggressive brain tumors that arise during childhood. Despite advances in genomic knowledge and the significant number of clinical trials testing new targeted therapies, patient outcomes are still insufficient. Immune checkpoint blockades with small molecules, such as aptamers, are opening new therapeutic options that represent hope for this orphan disease. Here, we demonstrated that a TIM-3 aptamer as monotherapy increased the immune infiltration and elicited a strong specific immune response with a tendency to improve the overall survival of treated DMG-bearing mice. Importantly, combining TIM-3 Apt with radiotherapy increased the overall median survival and led to long-term survivor mice in two pediatric DMG orthotopic murine models. Interestingly, TIM-3 aptamer administration increased the number of myeloid populations and the pro-inflammatory ratios of CD8: Tregs in the tumor microenvironment as compared to non-treated groups after radiotherapy. Importantly, the depletion of T-cells led to a major loss of the therapeutic effect achieved by the combination. This work uncovers TIM-3 targeting as an immunotherapy approach to improve the radiotherapy outcome in DMGs and offers a strong foundation for propelling a phase I clinical trial using radiotherapy and TIM-3 blockade combination as a treatment for these tumors.
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  • 文章类型: Journal Article
    应开发激素相关治疗以外的策略,以改善前列腺癌的死亡率,以改善疾病管理。在这里,我们表明FUBP1及其甲基化对于前列腺癌的进展至关重要,和竞争性肽干扰FUBP1甲基化抑制前列腺癌的发展。FUBP1在各种临床前模型中加速前列腺癌的发展。PRMT5介导的FUBP1甲基化,在我们的患者队列中,由BRD4调节,对其致癌作用至关重要,并且与较早的生化复发、较短的治疗持续时间相关.在表达PRMT5介导的甲基化缺陷的FUBP1突变体的不同遗传小鼠模型中观察到抑制的前列腺癌进展。一种竞争性肽,通过纳米复合物传递,成功破坏FUBP1与PRMT5的相互作用,阻断FUBP1甲基化,并在不同的临床前模型中抑制前列腺癌的发展。总的来说,我们的研究结果表明,靶向FUBP1甲基化为疾病前列腺癌管理提供了潜在的治疗策略.
    Strategies beyond hormone-related therapy should need to be developed to improve prostate cancer mortalityfor better disease management. Here we show that FUBP1 and its methylation are essential for prostate cancer progression, and a competitive peptide interfering with FUBP1 methylation suppresses the development of prostate cancer. FUBP1 accelerated prostate cancer development across in various pre-clinical models. PRMT5-mediated FUBP1 methylation, regulated by BRD4, was crucial for its oncogenic effect and correlated with earlier biochemical recurrence shorter treatment durations in our patient cohort. Suppressed prostate cancer progression was observed in different various genetic mouse models expressing FUBP1 mutants deficient in PRMT5-mediated methylation. A competitive peptide, which was delivered through nanocomplexes, successfully disrupted the interaction of FUBP1 with PRMT5, blocked FUBP1 methylation, and inhibited prostate cancer development in different various pre-clinical models. Overall, our findings suggest that targeting FUBP1 methylation provides a potentially therapeutic strategy for disease prostate cancer management.
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  • 文章类型: Journal Article
    由家族性引起的神经和神经肌肉疾病,零星的,或者从头突变已经毁灭了个人,家族性,和社会影响。作为DNA转录的初始产物,RNA转录本及其相关核糖核蛋白复合物通过增加野生型或阻断突变等位基因表达,为调节提供了有吸引力的靶标。从而减轻下游的病理后果。因此,不足为奇的是,许多现有的和开发中的疗法都集中于靶向疾病相关的RNA转录本作为这些遗传性疾病的一线药物策略.这篇综述使用显性和隐性神经和神经肌肉疾病的例子,重点关注当前范围的RNA靶向方式。
    Neurological and neuromuscular diseases resulting from familial, sporadic, or de novo mutations have devasting personal, familial, and societal impacts. As the initial product of DNA transcription, RNA transcripts and their associated ribonucleoprotein complexes provide attractive targets for modulation by increasing wild-type or blocking mutant allele expression, thus relieving downstream pathological consequences. Therefore, it is unsurprising that many existing and under-development therapeutics have focused on targeting disease-associated RNA transcripts as a frontline drug strategy for these genetic disorders. This review focuses on the current range of RNA targeting modalities using examples of both dominant and recessive neurological and neuromuscular diseases.
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  • 文章类型: Journal Article
    细胞外囊泡(EV)是可由大多数细胞分泌的各种尺寸的纳米级膜囊泡。电动汽车包含各种各样的货物,包括RNA,脂质,蛋白质,和其他具有细胞间通讯功能的分子,免疫调节,以及生理和病理过程的调节。眼睛里的生物流体,包括眼泪,房水,和玻璃体幽默,是基于EV诊断眼部疾病的重要来源。因为分子货物可能反映了其亲本细胞的生物学特性,这些生物流体中的电动汽车,以及在血液中,已被认为是有希望的候选生物标志物用于眼部疾病的早期诊断。此外,EV也已被用作许多眼部病症中的治疗剂和靶向药物递送纳米载体,因为它们在本质上具有低免疫原性和优异的生物相容性。在这次审查中,我们概述了基于EV的眼部疾病诊断和治疗研究领域的最新进展。我们总结了应用于眼部疾病的电动汽车的起源,评估了从眼部生物流体样品中分离EV的不同方法,强调了电动汽车作为药物输送系统的生物工程策略,介绍了眼病诊断和治疗的最新应用,并在目前的临床试验中展示了它们的潜力。最后,我们简要讨论了基于EV的眼部疾病研究面临的挑战,以及未来更好地关注EV临床转化研究的一些值得关注的问题.
    Extracellular vesicles (EVs) are nanoscale membrane vesicles of various sizes that can be secreted by most cells. EVs contain a diverse array of cargo, including RNAs, lipids, proteins, and other molecules with functions of intercellular communication, immune modulation, and regulation of physiological and pathological processes. The biofluids in the eye, including tears, aqueous humor, and vitreous humor, are important sources for EV-based diagnosis of ocular disease. Because the molecular cargos may reflect the biology of their parental cells, EVs in these biofluids, as well as in the blood, have been recognized as promising candidates as biomarkers for early diagnosis of ocular disease. Moreover, EVs have also been used as therapeutics and targeted drug delivery nanocarriers in many ocular disorders because of their low immunogenicity and superior biocompatibility in nature. In this review, we provide an overview of the recent advances in the field of EV-based studies on the diagnosis and therapeutics of ocular disease. We summarized the origins of EVs applied in ocular disease, assessed different methods for EV isolation from ocular biofluid samples, highlighted bioengineering strategies of EVs as drug delivery systems, introduced the latest applications in the diagnosis and treatment of ocular disease, and presented their potential in the current clinical trials. Finally, we briefly discussed the challenges of EV-based studies in ocular disease and some issues of concern for better focusing on clinical translational studies of EVs in the future.
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  • 文章类型: Journal Article
    细胞质肽:N-聚糖酶(NGLY1)广泛表达并作为降解错误折叠的N-糖基化蛋白的去N-糖基化酶起作用。由于双等位基因功能丧失而导致的NGLY1缺乏症NGLY1变体是一种具有多系统参与的超染色体常染色体隐性去糖基化疾病;神经系统表现代表了主要的疾病负担。目前,这种疾病没有治疗方法。为了发展基因疗法,我们首先表征了他莫昔芬诱导的Ngly1敲除(iNgly1)C57BL/6J小鼠模型,表现出概括人类疾病的症状,包括生物标志物GlcNAc-Asn(GNA)的升高,运动障碍,后凸畸形,浦肯野细胞丢失,和步态异常。我们将密码子优化的人NGLY1转基因盒包装到两个腺相关病毒(AAV)衣壳中,AAV9和AAV。PHPeB.AAV的全身给药。对有症状的iNgly1小鼠的PHPeB载体在治疗后八周纠正了多种疾病特征。此外,另一个AAV队列。对PHPeB治疗的iNgly1小鼠进行了一年的监测,并显示疾病表型的神经系统方面几乎完全正常化,证明了基因疗法的持久性.我们的数据表明,通过全身递送脑定向NGLY1基因替代是NGLY1缺乏症的有希望的治疗策略。虽然AAV的CNS向性优越。PHPeB载体不翻译成灵长类动物,具有增强的灵长类CNS嗜性的新兴AAV衣壳将使未来的翻译研究成为可能。
    The cytoplasmic peptide:N-glycanase (NGLY1) is ubiquitously expressed and functions as a de-N-glycosylating enzyme that degrades misfolded N-glycosylated proteins. NGLY1 deficiency due to biallelic loss-of-function NGLY1 variants is an ultrarare autosomal recessive deglycosylation disorder with multisystemic involvement; the neurological manifestations represent the major disease burden. Currently, there is no treatment for this disease. To develop a gene therapy, we first characterized a tamoxifen-inducible Ngly1 knock-out (iNgly1) C57BL/6J mouse model, which exhibited symptoms recapitulating human disease, including elevation of the biomarker GlcNAc-Asn (GNA), motor deficits, kyphosis, Purkinje cell loss, and gait abnormalities. We packaged a codon-optimized human NGLY1 transgene cassette into two adeno-associated virus (AAV) capsids, AAV9 and AAV.PHPeB. Systemic administration of the AAV.PHPeB vector to symptomatic iNgly1 mice corrected multiple disease features at eight weeks post-treatment. Furthermore, another cohort of AAV.PHPeB-treated iNgly1 mice were monitored over a year, and showed near-complete normalization of the neurological aspects of the disease phenotype, demonstrating the durability of gene therapy. Our data suggested that brain-directed NGLY1 gene replacement via systemic delivery is a promising therapeutic strategy for NGLY1 deficiency. Although the superior CNS tropism of AAV.PHPeB vector does not translate to primate, emerging AAV capsids with enhanced primate CNS tropism will enable future translational studies.
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  • 文章类型: Journal Article
    酒渣鼻是一种复杂的炎症性疾病,其特征在于丘疹脓疱性病变和中央面部红斑,无法治愈。酒渣鼻的发展受到外部触发因素和遗传因素的影响,但是常见的病理生理学是免疫系统的过度激活。这里,我们回顾了目前关于促炎细胞因子和作为酒渣鼻可靶向成分的神经血管系统失调的数据。皮肤和胃肠道生态失调和其他外部因素的改善会影响免疫状态,并已观察到改善酒渣鼻。虽然存在多种治疗方法,许多患者没有达到控制酒渣鼻的目标,并强调对皮肤病护理的需求未得到满足。目前的干预措施包括局部/口服药物,光设备,和避免触发器管理。对潜在发病机制的进一步了解可能有助于我们开发新的靶向治疗策略来改善酒渣鼻。
    Rosacea is a complex inflammatory condition characterized by papulopustular lesions and erythema on the central face for which there is no cure. The development of rosacea is influenced by both external triggers and genetics, but the common pathophysiology is overactivation of the immune system. Here, we review the current data on proinflammatory cytokines and dysregulation of the neurovascular system as targetable components of rosacea. Amelioration of cutaneous and gastrointestinal dysbiosis and other external factors impacts the immune state and has been observed to improve rosacea. While multiple treatments exist, many patients do not achieve their goals for rosacea control and highlights an unmet need for dermatologic care. Current interventions encompass topical/oral drugs, light devices, and avoidance of triggers management. Additional understanding of the underlying pathogenesis may help us develop novel targeted therapeutic strategies to improve rosacea.
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  • 文章类型: Journal Article
    代谢骨健康部,加的夫和淡水河谷大学健康委员会,服务于当地人口约445000人。对denosumab治疗诊所(传统治疗途径)和denosumab自我注射计划(SIP)的出勤数据进行了回顾性审核,以确定SIP是否既具有成本效益又有利于环境,与传统治疗途径相比。然后由财务部进行成本分析。在实施服务开发后的3年内进行了审核;在审核时,有233名患者参加了该计划,有69名患者完成了3年的自我注射治疗。该服务确定了497名患者的对照组。该小组保持历史路线,并在2017年至2019年的3年期间保持一致的出勤活动。比较了该计划中所有患者的前期和后期活动,连同活动为独立对照组。SIP导致临床接触减少,财务分析显示,每位患者每年可节省420英镑的总机会成本。减少对临床站点的访问次数对患者有明显的好处,这也导致每位患者每年估计碳足迹减少59kgCO2。成本分析基于我们组织的2022年收费。SIP表明,通过关注“离家更近”的护理,可以最大限度地利用资源,通过减少旅行改善患者体验,减少医疗保健对环境的影响。
    The Metabolic Bone Health Department, Cardiff and Vale University Health Board, serves a local population of approximately 445 000 people. A retrospective audit of attendance data regarding the denosumab treatment clinic (the traditional treatment pathway) and the denosumab Self-Injection Program (SIP) was conducted to determine whether the SIP is both cost-effective and environmentally beneficial, compared to the traditional treatment pathway. Cost analysis was then conducted by the Finance Department. The audit was conducted over 3 years following the implementation of the service development; 233 patients had enrolled in the program at the time of the audit and 69 had completed 3 years of self-injected treatment. A control group of 497 patients were identified by the service. This group remained on the historical pathway and had consistent attendance activity over the 3-yr period from 2017 to 2019. Pre- and post-period activity of all patients on the program was compared, together with the activity for the independent control group. The SIP resulted in a reduction in clinical contacts, with financial analysis showing a total opportunity cost saving per patient of £420 per annum. There were obvious benefits to the patient of a reduced number of visits to a clinical site, which also resulted in an estimated carbon footprint reduction of 59 kg CO2 per patient per annum. The cost analysis is based on our organization\'s 2022 charges. The SIP demonstrates that by focusing on care \"closer to home\", it is possible to maximize resources, improve the patient experience through reduced travel, and reduce the environmental impact of healthcare.
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  • 文章类型: Journal Article
    癌症是一种复杂的疾病,在不同的周围微环境中表现出生理形态转变。因此,单一的治疗方式效果相对较差,它们的效率随肿瘤细胞生理学而变化,导致肿瘤耐药性的发展。组合治疗方法,如化学光热疗法,无论癌症生理学如何,都有望有效缓解肿瘤进展。纳米技术在这方面发挥了重要作用。因此,本研究报道了合成聚(丙烯酸)-四甘醇(PAA-TEG)包覆的BaSO4纳米颗粒(NPs),分散性,和X射线衰减。接下来,纳米复合材料(NC)是通过用治疗药物三碘苯甲酸(Tiba)和使用脂质涂层的光敏剂IR780加载BaSO4NP来合成的。分析这些制造的NC的双模态成像(基于荧光和X射线的成像)特性和针对A549细胞的二维(2D)和三维(3D)培养物的化学光疗能力。此外,A549细胞在形态和生理上加重为有效的恶性细胞使用烟草叶提取物(TE),并确定与顺铂相比NC的治疗效果的变化。合成的NC通过产生活性氧(ROS)显示出增强的包封和优异的协同抗癌活性,线粒体损伤,和遗传毒性。此外,NCs在抑制癌细胞生长方面比顺铂更有效,在存在或不存在TE预处理的A549细胞中,它们的影响是不变的。本研究对各种疗法应用具有巨大的潜力,这是腹腔镜图像引导肺癌治疗的高度期望。
    Cancer is a complex disease that displays physiomorphological transformation in different surrounding microenvironments. Therefore, the single treatment modalities are relatively less effective, and their efficiency varies with tumor cell physiology, leading to the development of tumor resistance. Combinatorial therapeutic approaches, such as chemo-photothermal therapy, are promising for efficiently mitigating tumor progression irrespective of cancer physiology. Nanotechnology has played a significant role in this regard. Therefore, the present study reports the synthesis of poly(acrylic acid)-tetraethylene glycol (PAA-TEG)-coated BaSO4 nanoparticles (NPs) with enhanced solubility, dispersibility, and X-ray attenuation. Next, nanocomposites (NCs) are synthesized by loading BaSO4 NPs with the therapeutic drug triiodobenzoic acid (Tiba) and the photosensitizer IR780 using a lipid coating. These fabricated NCs are analyzed for dual-modal imaging (fluorescence and X-ray-based imaging) properties and chemo-phototherapeutic ability against two-dimensional (2D) and three-dimensional (3D) cultures of A549 cells. Furthermore, A549 cells are morphologically and physiologically aggravated into potent malignant cells using tobacco leaf extract (TE), and the variation in the therapeutic effect of NCs compared to cisplatin is determined. The synthesized NCs display enhanced encapsulation and excellent synergistic anticancer activity through the generation of reactive oxygen species (ROS), mitochondrial damage, and genotoxicity. Also, the NCs are more potent in inhibiting cancer cell growth than cisplatin, and their impact is unaltered in the presence or absence of TE pretreatment of A549 cells. The present study holds significant potential for various theranostic applications, which are highly desired for laparoscopic image-guided lung cancer therapy.
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  • 文章类型: Journal Article
    靶向治疗的发展为无法治愈的癌症患者提供了新的希望。然而,多重挑战依然存在,特别是在控制难治性和转移性疾病患者的肿瘤细胞可塑性方面。神经母细胞瘤(NB)是一种侵袭性儿科恶性肿瘤,源于遗传和表观遗传改变导致具有致癌活性的神经c衍生祖细胞的分化缺陷,并且仍然是高危患者的临床挑战。为了确定驱动NB攻击性的关键基因,我们对匹配的患者来源的异种移植物(PDX)进行了染色质和转录组分析,球体,和来自转移性MYCN非扩增肿瘤的分化贴壁培养物。在PDX和球体与粘附模型中,X染色体(BMX)上的骨髓激酶被鉴定为最差异调节的基因。BMX表达与高肿瘤分期和低患者生存率相关,对于维持NB球体的自我更新和致瘤潜力至关重要。此外,BMX表达与间充质NB细胞表型呈正相关,以前与化学抗性增加有关。最后,BMX抑制剂很容易逆转这种细胞状态,增加了NB球体对化疗的敏感性,并在临床前NB模型中部分减少肿瘤生长。总之,我们的研究将BMX确定为高危MYCN非扩增NB患者的有前景的创新治疗靶点.
    The development of targeted therapies offers new hope for patients affected by incurable cancer. However, multiple challenges persist, notably in controlling tumor cell plasticity in patients with refractory and metastatic illness. Neuroblastoma (NB) is an aggressive pediatric malignancy originating from defective differentiation of neural crest-derived progenitors with oncogenic activity due to genetic and epigenetic alterations and remains a clinical challenge for high-risk patients. To identify critical genes driving NB aggressiveness, we performed combined chromatin and transcriptome analyses on matched patient-derived xenografts (PDXs), spheroids, and differentiated adherent cultures derived from metastatic MYCN nonamplified tumors. Bone marrow kinase on chromosome X (BMX) was identified among the most differentially regulated genes in PDXs and spheroids versus adherent models. BMX expression correlated with high tumor stage and poor patient survival and was crucial to the maintenance of the self-renewal and tumorigenic potential of NB spheroids. Moreover, BMX expression positively correlated with the mesenchymal NB cell phenotype, previously associated with increased chemoresistance. Finally, BMX inhibitors readily reversed this cellular state, increased the sensitivity of NB spheroids toward chemotherapy, and partially reduced tumor growth in a preclinical NB model. Altogether, our study identifies BMX as a promising innovative therapeutic target for patients with high-risk MYCN nonamplified NB.
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  • 文章类型: Journal Article
    治疗24个月后总髋骨矿物质密度(THBMD)变化与骨折风险降低之间存在很强的相关性。我们研究了治疗12个月和18个月后THBMD的变化是否也与骨折风险降低相关。我们使用了来自22名随机分组的个体患者数据(n=122235名参与者),安慰剂对照,骨质疏松症药物的双盲试验。我们使用每个试验的可用数据计算了12、18和24个月时THBMD(活性安慰剂)的平均百分比变化的差异。我们确定了整个随访期间与治疗相关的骨折复位,使用logistic回归分析放射性椎体骨折,Cox回归分析髋关节,非椎骨,“所有”(非椎骨的组合,临床椎体,和放射学椎骨)骨折,和所有临床骨折(非椎骨和临床椎骨的组合)。我们进行了荟萃回归,以估计每个BMD测量间隔的THBMD变化与骨折风险降低的治疗相关差异之间的研究水平关联(r2和95%置信区间)。荟萃回归显示,对于椎骨骨折,r2(95%置信区间)为0.59(0.19,0.75),0.69(0.32,0.82),12、18和24个月为0.73(0.33、0.84),分别。对于髋部观察到类似的模式:r2=0.27(0.00,0.54),0.39(0.02,0.63),和0.41(0.02,0.65);非椎体:r2=0.27(0.01,0.52),0.49(0.10,0.69),和0.53(0.11,0.72);所有骨折:r2=0.44(0.10,0.64),0.63(0.24,0.77),和0.66(0.25,0.80);所有临床骨折:r2=0.46(0.11,0.65),0.64(0.26,0.78),和0.71(0.32,0.83),对于12-,THBMD的18个月和24个月变化,分别。这些研究结果表明,治疗相关的THBMD在12、18和24个月的变化与骨折风险的降低有关。我们得出结论,短至12个月的BMD测量间隔可用于评估骨折疗效。但随着BMD测量间隔的延长,这种关联更强。
    在这项研究中,我们研究了髋骨密度随时间的变化与服用骨质疏松药物的患者发生骨折的风险之间的关系.我们分析了来自22个不同临床试验的122,000多名参与者的数据。我们发现,治疗12、18和24个月后测量的骨密度增加与骨折风险有关。具体来说,骨密度的改善与脊柱骨折的减少有关,臀部,和其他骨头。使用统计方法,我们计算了这种联系的强度。我们发现,后来我们测量了服用药物的人的骨矿物质密度,骨密度提高和骨折风险降低之间的联系越强.我们的发现表明,治疗12个月后的骨密度测量可以帮助预测药物预防骨折的效果。然而,最好的预测来自较长时间内测量的骨密度变化。
    There is a strong association between total hip bone mineral density (THBMD) changes after 24 months of treatment and reduced fracture risk. We examined whether changes in THBMD after 12- and 18 months of treatment are also associated with fracture risk reduction. We used individual patient data (n = 122 235 participants) from 22 randomised, placebo-controlled, double-blind trials of osteoporosis medications. We calculated the difference in mean percent change in THBMD (active-placebo) at 12, 18, and 24 months using data available for each trial. We determined the treatment-related fracture reductions for the entire follow-up period, using logistic regression for radiologic vertebral fractures and Cox regression for hip, non-vertebral, \"all\" (combination of non-vertebral, clinical vertebral, and radiologic vertebral) fractures, and all clinical fractures (combination of non-vertebral and clinical vertebral). We performed meta-regression to estimate the study-level association (r2 and 95% confidence interval) between treatment-related differences in THBMD changes for each BMD measurement interval and fracture risk reduction. The meta-regression revealed that for vertebral fractures, the r2 (95% confidence interval) was 0.59 (0.19, 0.75), 0.69 (0.32, 0.82), and 0.73 (0.33, 0.84) for 12, 18 and 24 months, respectively. Similar patterns were observed for hip: r2 = 0.27 (0.00, 0.54), 0.39 (0.02, 0.63), and 0.41 (0.02, 0.65); non-vertebral: r2 = 0.27 (0.01, 0.52), 0.49 (0.10, 0.69), and 0.53 (0.11, 0.72); all fractures: r2 = 0.44 (0.10, 0.64), 0.63 (0.24, 0.77), and 0.66 (0.25, 0.80); and all clinical fractures: r2 = 0.46 (0.11, 0.65), 0.64 (0.26, 0.78), and 0.71 (0.32, 0.83), for 12-, 18- and 24-month changes in THBMD, respectively. These findings demonstrate that treatment-related THBMD changes at 12, 18 and 24 months are associated with fracture risk reductions across trials. We conclude that BMD measurement intervals as short as 12 months could be used to assess fracture efficacy, but the association is stronger with longer BMD measurement intervals.
    In this study, we looked at how changes in hip bone density over time relate to the risk of fractures in people taking osteoporosis medications. We analysed data from over 122 000 participants across 22 different clinical trials. We found that the increase in bone density measured after 12, 18, and 24 months of treatment was linked to the risk of fractures. Specifically, greater improvements in bone density were associated with fewer fractures in the spine, hips, and other bones. Using statistical methods, we calculated the strength of this association. We discovered that the later we measured bone mineral density in people taking the medication, the stronger the link between improved bone density and reduced fracture risk became. Our findings suggest that bone density measurements after 12 months of treatment could help predict how well a medication will prevent fractures. However, the best predictions came from bone density changes measured over longer periods.
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