Most patients with schizophrenia (SCZ) do not exhibit violent behaviors and are more likely to be victims rather than perpetrators of violent acts. However, a subgroup of forensic detainees with SCZ exhibit tendencies to engage in criminal violations. Although numerous models have been proposed, ranging from substance use, serotonin transporter gene, and cognitive dysfunction, the molecular underpinnings of violence in SCZ patients remains elusive. Lithium and clozapine have established anti-aggression properties and recent studies have linked low cholesterol levels and ultraviolet (UV) radiation with human aggression, while vitamin D3 reduces violent behaviors. A recent study found that vitamin D3, omega-3 fatty acids, magnesium, and zinc lower aggression in forensic population. In this review article, we take a closer look at aryl hydrocarbon receptor (AhR) and the dysfunctional lipidome in neuronal membranes, with emphasis on cholesterol and vitamin D3 depletion, as sources of aggressive behavior. We also discuss modalities to increase the fluidity of neuronal double layer via membrane lipid replacement (MLR) and natural or synthetic compounds.

UNASSIGNED: Alopecia areata (AA) is a common autoimmune T-cell mediated non-scarring, form of hair loss. It affects people of all ages and sexes.
UNASSIGNED: To compare the efficacy of intralesional vitamin D3 injection versus that of intralesional triamcinolone acetonide in the treatment of patchy alopecia areata.
UNASSIGNED: This clinical study was carried on 40 adult patients with patchy alopecia areata, the patients were categorized into two groups. Group I involved 20 patients who received 1 ml of intralesional injection of vitamin D3 (cholecalciferol aqueous preparation 200 000 IU/2 ml) every 4 weeks for a maximum of three sessions. Group II involved 20 patients who received 1 ml of intralesional injection of triamcinolone acetonide 40 mg/mL every 4 weeks for a maximum of three sessions. Clinical and trichoscopic evaluations were done at the baseline, each session and for 3 months after the last session.
UNASSIGNED: There was no statistically significant difference between the two studied groups regarding the degree of clinical improvement (p = .8). A statistically significant reduction in AA specific trichoscopic signs was detected at the end of the sessions and after 3 months of follow-up in both groups, without any statistically significant difference between them. Also a statistically significant difference was found between both groups regarding the reported adverse effects with a significant better patient satisfaction encountered toward the intralesional vitamin D3 injection.
UNASSIGNED: Intralesional vitamin D3 is a promising effective, simple, safe, and inexpensive, therapeutic modality for patchy AA.

BACKGROUND: Vitamin D possesses an important role in the maintenance and health of broiler chickens. Herbal essential oils (EOs) have been proposed as a suitable alternative to chemical drugs in intensive production management systems for better performance of broilers with slight side effects and admirable therapeutic properties.
OBJECTIVE: This experiment was conducted to investigate the effects of feeding cholecalciferol (VD) in combination of Satureja rechingeri EO (SREO) on growth performance, haematological indicators and immunological response of broilers.
METHODS: A total of 540 1-day-old mixed-sex broiler chickens (Ross 308) were used in a completely randomized design with a 3 × 3 factorial arrangement of treatments. Experimental treatments included different concentrations of cholecalciferol (VD) (0, 2000 and 4000 IU/kg = 0, 0.05 and 0.1 mg/kg) and SREO (0, 200 and 400 mg/kg) on growth performance, haematological indicators and immunological responses of broiler chickens were investigated.
RESULTS: The results showed that the chicken fed diet supplemented with 0.1 mg/kg VD (VD0.1) in combination of 200 mg/kg SREO (SREO200) increased the feed intake during the overall and first 14-day periods of the trial when compared with other dietary treatments. Interaction of VD0.1 × SREO200 led to more body weight gain (BWG) in the grower and finisher phases than all other feed treatment groups. The blood level of lymphocyte at day 42, heterophil at days 28 and 42 and heterophil/lymphocyte (H/L) ratio at 14 and 28 days of age were affected by VD0.1 + SREO200 in comparison with VD0 + SREO0 group. Feeding VD and/or SREO decreased triglyceride, cholesterol and low-density lipoprotein concentrations at days 28 and 42 of the study, especially in VD0.1 + SREO200 treatment. Feeding VD0.1 + SREO200 also resulted in higher serum status of immunoglobulin M, lysozymes and phagocytic percentage among all treatments.
CONCLUSIONS: Considering the outcomes, it is suggested that the combination of suitable concentration of VD and EO of the plant had favourable effects on the immune system and performance criteria of broiler chickens.

Intestinal absorption of phosphate is bimodal, consisting of a transcellular pathway and a poorly characterized paracellular mode, even though the latter one contributes to the bulk of absorption under normal dietary conditions. Claudin-3 (Cldn3), a tight junction protein present along the whole intestine in mice, has been proposed to tighten the paracellular pathway for phosphate. The aim of this work was to characterize the phosphate-related phenotype of Cldn3-deficient mice. Cldn3-deficient mice and wildtype littermates were fed standard diet or challenged for 3 days with high dietary phosphate. Feces, urine, blood, intestinal segments and kidneys were collected. Measurements included fecal, urinary, and plasma concentrations of phosphate and calcium, plasma levels of phosphate-regulating hormones, evaluation of trans- and paracellular phosphate transport across jejunum and ileum, and analysis of intestinal phosphate and calcium permeabilities. Fecal and urinary excretion of phosphate as well as its plasma concentration was similar in both genotypes, under standard and high-phosphate diet. However, Cldn3-deficient mice challenged with high dietary phosphate had a reduced urinary calcium excretion and increased plasma levels of calcitriol. Intact FGF23 concentration was also similar in both groups, regardless of the dietary conditions. We found no differences either in intestinal phosphate transport (trans- or paracellular) and phosphate and calcium permeabilities between genotypes. The intestinal expression of claudin-7 remained unaltered in Cldn3-deficient mice. Our data do not provide evidence for a decisive role of Cldn3 for intestinal phosphate absorption and phosphate homeostasis. In addition, our data suggest a novel role of Cldn3 in regulating calcitriol levels.

This study involved fortifying pumpkin slices with calcium and vitamin D3 using vacuum impregnation (VI) pre-treatment and assessing the quality characteristics of the resulting desserts/jams. Slices were subjected to immersion or VI pre-treatments for 30, 60, and 90 min in a solution containing calcium oxide and vitamin D3. Calcium ions contributed to the hardness of desserts, with VI reducing processing time. The highest impregnated calcium (58.17 mg/100 g fw) and vitamin D3 contents (6.02 mg/100 g dm) were determined in slices pre-treated by VI for 90 min. VI was more effective than immersion in terms of calcium and vitamin D3 transition into pumpkin tissues. Scanning electron microscope (SEM) images indicated that calcium oxide particles were noticeable in slices pre-treated by VI. Immersing fruit slices for 90 min produced desserts with a textural hardness of 11.04 N, while VI pre-treatment for the same duration increased their hardness value to 18.92 N. Desserts produced with VI-pre-treated slices exhibited superior texture and sensory attributes, with no adverse taste resulting from calcium oxide. In conclusion, VI pre-treatment shows significant potential for the industrial production of desserts/jams with enhanced structural integrity for fruits.

BACKGROUND: Fried food has increased in popularity worldwide. However, deep frying can increase the production of peroxidative toxins in food, which might be harmful to fetal development. The antioxidative effect of vitamin D3 (VD3) has been reported previously.
OBJECTIVE: This study aimed to explore how maternal VD3 supplementation in an oxidized-oil diet during gestation affects fetal antioxidative ability and development.
METHODS: Pregnant mice were randomly assigned into 3 groups: Control group (diet with fresh soybean oil), OSO group [diet with oxidized soybean oil (OSO)], and OSOV group (diet with OSO and 10,000 IU/Kg VD3). Mice were fed with the corresponding diet during gestation. On day 16.5 of gestation, the placenta and fetus were harvested to analyze antioxidative status.
RESULTS: Maternal oxidized-oil diet during gestation significantly reduced placental vessel abundance, labyrinth zone area, and fetal body weight. However, dietary VD3 supplementation prevented these negative effects of oxidized-oil diet. Maternal intake of oxidized-oil diet increased serum concentrations of malondialdehyde, total-nitric oxide synthase, and inducible nitric oxide synthase, whereas VD3 supplementation showed a protection effect on it. Additionally, maternal VD3 supplementation increased the levels of antioxidative enzymes and the nuclear translocation of nuclear factor erythroid 2-related factor 2 (NRF2), thereby protecting placenta and fetus from apoptosis and oxidative stress caused by an oxidized-oil diet. The gene expression and protein levels of a fatty acid transporter solute carrier family 27 member 1 in the fetal liver were increased by maternal VD3 supplementation under oxidized-oil diet. Notably, NRF2 could be co-immunoprecipitated with the VD receptor in the placenta.
CONCLUSIONS: Maternal VD3 supplementation could protect fetus from oxidized-oil diet induced developmental impairment by alleviating oxidative stress in the placenta and fetus through the VD receptor/NRF2 pathway, at least partially. Thus, ensuring adequate levels of VD3 through supplementation is often critical during pregnancy.

UNASSIGNED: Laparoscopic cholecystectomy (LC) is the gold standard management for benign gallbladder diseases. It has been observed that there is alteration in vitamin D levels and bone mineral density after cholecystectomy due to altered enterohepatic circulation. With increase in average age expectancy of the population, low levels of vitamin D levels and osteoporosis after cholecystectomies might cause increased health care burden.
UNASSIGNED: A prospective observational study was planned between 1 January 2022 and 30 June 2023 in the Department of General Surgery at PGIMER Chandigarh, a tertiary care hospital in north India. One hundred and three post-menopausal women who underwent LC and met the inclusion and exclusion criteria were included in the study. All participants underwent estimation of vitamin D and bone mineral density preoperatively and third-post operative month (POM).
UNASSIGNED: The mean age of the patients was 58.46 ± 7.44. Pain abdomen was present in 68(66%) patients, 18 had epigastric discomfort and 17 had dyspepsia. The mean levels of vitamin D decreased from 21.92 at the baseline to 20.12 at third POM (p < .001). There was a significant change in t score Femoral Neck (-1.12 vs -1.15, p < .001) and Lumbar spine L1-L4 - 1.98 vs -1.98 (p = .033). z-scores of the femoral neck were -0.34 vs -0.54 (p < .001) and of lumbar spine L1-L4 were -0.95 vs 1.02 (p < .001). The decrease in fracture risk for the femoral neck (p = .344) and the lumbar spine (p = .223) was not statistically significant.
UNASSIGNED: There is a significant decrease in vitamin D and BMD levels after LC in post-menopausal females.

Vitamin D3 plays a crucial role in female reproduction. As research progresses, the mechanisms of action of vitamin D3 on follicular development have been widely discussed. Firstly, key enzymes involved in the synthesis and metabolism of vitamin D3 have been discovered in the ovary, suggesting that vitamin D3 can be synthesized and metabolized locally within the ovary. Additionally, the detection of vitamin D3 receptors (VDR) in follicles suggests that vitamin D3 may exert its effects by binding specifically to these receptors during follicular development. Further research indicates that vitamin D3 promotes follicular growth by enhancing the development of granulosa cells (GCs) and oocytes. Currently, the mechanism of action of vitamin D3 in follicular development is becoming increasingly clear. Vitamin D3 promotes oocyte development by regulating molecules involved in meiotic arrest in oocytes. It also enhances granulosa cell proliferation by stimulating steroid hormone synthesis and cell cycle regulation. Additionally, vitamin D3 exerts anti-inflammatory effects by reducing oxidative stress and advanced glycation end-products (AGEs), mitigating the detrimental effects of inflammation on follicular development. These functions of vitamin D3 have clinical applications, such as in treating polycystic ovary syndrome (PCOS), improving female fertility, and enhancing outcomes in in vitro fertilization (IVF). This review summarizes the research progress on the role and mechanisms of vitamin D3 in follicular development and briefly summarizes its clinical applications.

Henoch-Schönlein purpura (HSP) is an immunoglobulin A (IgA)-mediated systemic vasculitis, which is one of the rare adverse reactions to hepatitis B vaccination. Low vitamin D levels were found to be present in the majority of HSP patients.A 19-year-old woman was admitted with a purpuric rash on bilateral lower limbs and joint pain on her left index finger in January 2020. A previous history of rash occurred one week after the patient received her first dose of recombinant hepatitis-B vaccination. Routine hematological examination, creatinine, urinalysis, C3, and C4 showed normal results. HBsAg, Anti-HCV, and ANA tests were negative, and anti-HBs were elevated. Vitamin D is very low. The patient was diagnosed with HSP and given mycophenolate mofetil, methylprednisolone, vitamin D3, and folic acid. Within 1 month of therapy, the rash still occurred frequently, so mycophenolate mofetil was changed to mycophenolic acid, the dose of methylprednisolone was increased and fexofenadine was administered. In the next 3 months, the rash has improved. However, patients reported knee joint pain and hair loss. In May 2021, the patient underwent tonsillectomy due to acute exacerbation of chronic tonsillitis. Thereafter, the patient reported that the rash had completely resolved and never worsened, and the vitamin D assay was normal.Hepatitis B vaccination is one of the etiologies of HSP, although it is rare, so it is important to ask about the vaccination history in patients with suspected HSP. Correction of vitamin D and performing tonsillectomy provide better treatment results in HSP cases in this patient.

Vitamin D3 deficiency and insufficiency are becoming a common global issue for us, especially in the most industrially developed countries. The only acknowledged activity of vitamin D3 in vertebrates is to promote the absorption of calcium and, therefore, allow for the mineralization of bones. Accordingly, its deficiency is associated with diseases such as rickets. Other numerous vital functions associated with vitamin D3 are yet to be considered, and the function of vitamin D2 in plants is unknown. Thus, 100 years after its discovery, the importance of vitamin D still seems to be unacknowledged (except for rickets), with little attention given to its decrease throughout the world. In this review, I suggest that vitamin D deficiency and insufficiency may be linked to the westernized lifestyle in more developed countries. Furthermore, I suggest that, rather than the calcemic activity, the main function of vitamin D is, in general, that of strengthening living organisms. I conclude with the hypothesis that vitamin D deficiency may represent a marker for a greater risk of chronic inflammatory diseases and a shorter life expectancy.