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1.
Intern Med ; 63(6): 809-814, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38171875

ABSTRACT

An 86-year-old man presented to our hospital with symptoms of diarrhea and bloody stool, which had manifested two weeks after receiving his third severe acute respiratory syndrome coronavirus 2 mRNA vaccination. Colonoscopy revealed diffuse, rough-surfaced mucosa extending from the ascending colon to the rectum. Despite attempting probiotic treatment, the patient's condition did not improve, leading to admission. Endoscopic findings at admission worsened. Based on endoscopic and histopathological findings, the patient was diagnosed with ulcerative colitis. Corticosteroids and 5-aminosalicylic acid were administered, and the clinical symptoms improved. Subsequently, the disease worsened during steroid tapering, and filgotinib was added, leading to steroid-free remission.


Subject(s)
COVID-19 , Colitis, Ulcerative , Male , Humans , Aged , Aged, 80 and over , Colitis, Ulcerative/diagnosis , SARS-CoV-2 , COVID-19/complications , COVID-19/diagnosis , Vaccination , RNA, Messenger
2.
Geriatr Gerontol Int ; 24(1): 25-31, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37973613

ABSTRACT

AIM: The inability to quickly react to an external event can lead to an increased risk for accidents (e.g., falls, car crashes) in patients with cirrhosis. The aim of this study was to determine whether a novel clinically feasible measure of simple reaction time (SRT) and reaction accuracy (RA)-a go/no-go task occurring within 400 ms-could differentiate patients with cirrhosis from controls. METHODS: This retrospective study included 160 patients with cirrhosis and 160 controls assessed between January 2010 and October 2022. SRT and RA were evaluated using a ruler drop paradigm and compared using propensity score matching. Factors distinguishing patients with cirrhosis from controls were assessed using logistic regression and receiver operating characteristics curve (ROC) analyses. RESULTS: Propensity score matching identified 112 participants in each group with comparable baseline characteristics. As compared with controls, patients with cirrhosis exhibited significantly prolonged SRT (200 vs. 174 ms; P < 0.001) and diminished total RA (63% vs. 73%; P < 0.001). After adjustment for confounding factors, SRT and RA independently identified patients with cirrhosis. ROC analyses showed that SRT more effectively identified patients with cirrhosis than did the number-connection test/trail-making test-B (area under the curve, 0.87 vs. 0.60; P < 0.001). CONCLUSIONS: Patients with cirrhosis demonstrated impairments in short-latency cognitive function. Given that SRT and RA are associated with balance, falls, and response to perturbation, these parameters may present a task-specific method to identify patients with cirrhosis at high risk of falls and motor vehicle crashes. Geriatr Gerontol Int 2024; 24: 25-31.


Subject(s)
Hepatic Encephalopathy , Humans , Retrospective Studies , Reaction Time , Hepatic Encephalopathy/complications , Prospective Studies , Liver Cirrhosis/complications , Liver Cirrhosis/diagnosis , Accidental Falls , ROC Curve
3.
Anim Biosci ; 34(12): 1912-1920, 2021 Dec.
Article in English | MEDLINE | ID: mdl-33902172

ABSTRACT

OBJECTIVE: This study investigated the effects of 5-aminolevulinic acid (5-ALA) on the motility parameters, mitochondrial membrane depolarization, and ATP levels in chicken sperm. METHODS: The pooled semen from Barred Plymouth Rock males was used. In the first experiment, the semen was diluted 4-times with phosphate-buffered saline (PBS (-)) containing various concentrations (0, 0.01, 0.05, and 0.1 mM) of 5-ALA, and then the sperm motility parameters after incubation were evaluated by computer-assisted sperm analysis (CASA). In the second experiment, the semen was diluted 4-times with PBS (-) containing 0.05 mM 5-ALA, and then sperm mitochondrial membrane depolarization and ATP levels after 1.5 h of incubation were analyzed with the MitoPT® JC-1 Assay and ATP Assay kits, respectively. In the third experiment, the semen was removed from the seminal plasma and resuspended with the mediums of PBS (-), PBS (-) supplemented with CaCl2 and MgCl2 (PBS (+)) + 5-ALA, PBS (+) + caffeine, and PBS (+) + caffeine + 5-ALA. Then, the sperm motility parameters after incubation were evaluated by CASA. In the last experiment, the semen was treated with the mediums of PBS (-), PBS (-) + 5-ALA, 5.7% glucose, 5.7% glucose + 5-ALA after removing the seminal plasma, and then the sperm motility parameters were evaluated by CASA. RESULTS: The addition of 0.05 mM 5-ALA significantly increased the chicken sperm motility, progressive motility, linearity, average path velocity, curvilinear velocity, straight-line velocity, and the wobble. The sperm mitochondrial membrane depolarization was also increased by the 5-ALA treatment. The 5-ALA treatment decreased the sperm ATP levels. Both the caffeine treatment and glucose treatment decreased the sperm motility during incubation period. CONCLUSION: 5-ALA might increase sperm mitochondrial membrane depolarization to utilize the ATP for enhancing sperm movement.

4.
Poult Sci ; 100(4): 100980, 2021 Apr.
Article in English | MEDLINE | ID: mdl-33610899

ABSTRACT

In birds, sperm storage tubules (SST) located in the utero-vaginal junction are thought to be a site of sperm selection; however, the exact mechanism of sperm selection is poorly understood. Here, we investigated sperm entry into the SST and subsequent fertilization success under a competitive situation created by artificial insemination of a sperm mixture obtained from 2 males. We employed 2 quail strains, a wild-type and a dominant black (DB) type, as this allows easy assessment of paternity by feather coloration. We found paternity of embryos was biased toward DB males when a sperm mix with similar sperm numbers from the 2 males strains was artificially inseminated into females. Our novel sperm staining method with 2 different fluorescent dyes showed that the DB-biased fertilization was because of the better ability of DB sperm to enter the SST. Moreover, we found that DB sperm had a longer flagellum and midpiece. These characteristics probably allow sperm to swim faster in a high viscosity medium, which may be a similar environment to the lumen of the female reproductive tract. Our results indicated that sperm competition occurs to win a place in the SST and that filling the SST with their own spermatozoa is a critical step to achieve better fertilization success for the male Japanese quail.


Subject(s)
Chickens , Coturnix , Animals , Female , Fertilization , Insemination, Artificial/veterinary , Male , Spermatozoa
5.
Gastrointest Endosc ; 94(1): 48-56, 2021 07.
Article in English | MEDLINE | ID: mdl-33383037

ABSTRACT

BACKGROUND AND AIMS: Direct percutaneous endoscopic jejunostomy (DPEJ) is an alternative method of enteral feeding to percutaneous endoscopic gastrostomy (PEG). Although long-term outcomes of PEG have been reported, little is known regarding the outcomes of DPEJ. METHODS: A retrospective cohort study was conducted including 115 and 651 consecutive attempts of DPEJ and PEG, respectively, in a total of 766 elderly patients between April 2004 and March 2019. Patients' clinical background, procedural and long-term outcomes, survival analysis, and cause of death were analyzed. RESULTS: Successful placement rates were 93.9% and 97.1% for DPEJ and PEG, respectively. There was no significant difference in procedure-related adverse events (AEs) between the DPEJ and PEG groups. Rates of pneumonia, vomiting, and upper GI bleeding were significantly lower, whereas those of fistula enlargement and ileus were significantly higher in the DPEJ group as long-term AEs. The median survival periods were 694 and 734 days for DPEJ and PEG, respectively, with no significant differences between the 2 groups. Multivariate analysis revealed that age 80 years old or older, C-reactive protein level of 1.0 mg/dL or higher, and the presence of diabetes were independent risk factors for mortality after DPEJ. Respiratory tract infection was the primary cause of death in both groups. CONCLUSIONS: DPEJ is considered a safe and feasible method of access for enteral feeding as well as PEG. Although the survival period after DPEJ may be expected to be as long as that with PEG, DPEJ-specific AEs should be kept in mind on long-term feeding.


Subject(s)
Gastrostomy , Jejunostomy , Aged , Aged, 80 and over , Endoscopy, Gastrointestinal , Gastrostomy/adverse effects , Humans , Jejunostomy/adverse effects , Prognosis , Retrospective Studies
6.
Intern Med ; 59(15): 1803-1809, 2020 Aug 01.
Article in English | MEDLINE | ID: mdl-32461526

ABSTRACT

Objective As direct jejunal feeding often causes great fluctuation in glucose levels, continuous or slow infusion is recommended for jejunal tube-fed patients. However, continuous feeding results in prolonged immobility and the loss of activities of daily living. We investigated whether or not intermittent feeding of a low-carbohydrate high-monounsaturated fatty acid (LC/HM) nutrient formula reduces glucose fluctuation in patients who have undergone jejunotomy. Methods Ten bed-ridden non-diabetic patients receiving enteral feeding via a jejunostomy tube were enrolled in this study. LC/HM formula and standard control formula were infused in cross-over order for each patient at a speed of 160 kcal/h. Blood glucose levels were monitored by a continuous glucose monitoring system during the investigation period. Results The mean and standard deviation of the glucose concentrations and mean amplitude of glucose excursion (MAGE) were markedly lower while receiving LC/HM formula than while receiving control standard formula (104 vs. 136 mg/dL, 18.1 vs. 58.1 mg/dL, 50.8 vs. 160 mg/dL, respectively). The post-infusion hyperglycemia [area under the curve (AUC) >140 mg/dL] and peak value of the glucose level were also significantly lower in patients fed LC/HM than the control (25.7 vs. 880 mg・h/dL and 153 vs. 272 mg/dL, respectively). Reactive hypoglycemia (AUC <70 mg/dL) was also significantly lower (0.63 vs. 16.7 mg・h/dL) and the minimum value of the glucose level higher (78.4 vs. 61.8 mg/dL) in patients fed LC/HM than the control. Conclusion The LC/HM formula is considered to markedly inhibit glycemic spikes and prevent rebound hypoglycemia in patients who receive enteral feeding after jejunostomy.


Subject(s)
Dietary Carbohydrates/administration & dosage , Enteral Nutrition/methods , Hyperglycemia/diet therapy , Hypoglycemia/diet therapy , Activities of Daily Living , Aged , Aged, 80 and over , Blood Glucose , Cross-Over Studies , Female , Humans , Intubation, Gastrointestinal/methods , Jejunostomy/methods , Male , Monitoring, Physiologic , Nutritional Status
7.
Anim Sci J ; 89(4): 640-647, 2018 Apr.
Article in English | MEDLINE | ID: mdl-29318710

ABSTRACT

When European Union regulations restricted the use of estrogenic compounds in food-producing animals, refined hormonal protocols were no longer applicable for anovulatory cows. However, Ovsynch and its adaptations are routinely and uniformly applied to all cows regardless of ovarian function. To evaluate their efficacy on anovulatory cows, 143, 147 and 144 anovulatory cows received Ovsynch, Presynch and G6G protocols, respectively. In comparison, 150 cyclic cows were bred without using a synchronized protocol. Results showed that cows in the Presynch group had luteolysis responding to the last prostaglandin F2α (PGF2α ) injection greater than the Ovsynch group. The serous progesterone levels at the first gonadotropin-releasing hormone of Ovsych and the last PGF2α injection was greater in the G6G group than the other two hormonal treatment groups. Concentrations of Ca2+ and total protein in cervical mucus in all three hormone-treated groups before artificial insemination (AI) were significantly different from the controls. The G6G group obtained a greater pregnancy rate compared with Ovsynch and Presynch, but significantly less than the controls. For open cows in the Ovsynch group, estrus rate within 24 days after the first AI was significantly less than the controls. In conclusion, the G6G treatment resulted to better reproductive performance in anovulatory cows.


Subject(s)
Anovulation/drug therapy , Cattle/metabolism , Cattle/physiology , Estrogens/administration & dosage , Estrus Synchronization/methods , Lactation/physiology , Animals , Anovulation/physiopathology , Calcium/metabolism , Cervix Mucus/metabolism , Dinoprost/administration & dosage , Estrus , Female , Gonadotropin-Releasing Hormone/administration & dosage , Injections , Insemination, Artificial/methods , Luteolysis , Pregnancy , Pregnancy Rate , Progesterone/blood , Proteins/metabolism
8.
J Poult Sci ; 55(4): 301-306, 2018.
Article in English | MEDLINE | ID: mdl-32055189

ABSTRACT

The present study investigated the effects of timing and intervals between repeated inseminations by different rooster breeds on the fathering of chicks. The semen from Barred Plymouth Rock (BP), Japanese Silkie White (JS), and White Plymouth Rock (WP) males were used. Eighteen hens (7-month-old BP) were divided into four Groups (A-D). In all groups, the hens were first inseminated with the semen from BP males at 3 pm on day 0. The hens in Group A (n=3) were inseminated with the semen from JS and WP males at 3 pm on days 5 and 10, respectively. Those in Group B (n=3) were inseminated with the semen from JS and WP males at 3 pm on days 5 and 15, respectively. The hens in Group C (n=6) were inseminated with the semen from JS and WP males at 6 am on days 5 and 10, respectively. Lastly, those in Group D (n=6) were inseminated with the semen from JS and WP males at 6 am on days 10 and 20, respectively. The chicks obtained were classified on the basis of their phenotype matching with the breeding male phenotype. The majority of chicks (82.4% to 100% in Groups A and B) were fathered by the sperm from the subsequent insemination when repeated insemination was performed in the afternoon. Moreover, the chicks produced by the most recent insemination in the groups that were subjected to morning insemination could be obtained the next day after insemination (Groups C and D). The percentage of chicks fathered by the sperm from the subsequent insemination was 95.2% to 100% when the inter-insemination interval was 10 days (Groups B and D); these percentages decreased when the duration of the interval between inseminations was decreased to 5 days in Groups A, B, and C.

9.
PLoS One ; 12(5): e0178525, 2017.
Article in English | MEDLINE | ID: mdl-28542575

ABSTRACT

Mastitis is the most prevalent disease in dairy cattle worldwide and not only causes huge economic losses in the dairy industry but also threatens public health. To evaluate the therapeutic potential of melatonin in mastitis, we examined the ability of melatonin to protect bovine mammary epithelial cells (bMECs) from the harmful effects of lipopolysaccharide (LPS). We found that melatonin inhibited the LPS-binding protein-CD14-TLR4 signaling pathway in bMECs, which had opposing effects on pro-inflammatory and anti-inflammatory mediators. Melatonin decreased LPS-induced expression of pro-inflammatory cytokines, chemokines, and positive acute-phase proteins (APPs), including tumor necrosis factor-α, interleukin (IL)-1ß, IL-6, granulocyte-monocyte colony-stimulating factor, chemokine CC motif ligand (CCL)2, CCL5, serum amyloid A, haptoglobin, C-reactive protein, ceruloplasmin, and α-1 antitrypsin, and increased expression of the anti-inflammatory cytokine IL-1Ra and the negative APP fibrinogen. In addition, melatonin increased dityrosine levels but suppressed nitrite levels by upregulating the expression of Nrf2 and heme oxygenase-1 in the Nrf2 antioxidant defense pathway. Finally, melatonin administration increased the viability of LPS-stimulated bMECs. These results suggest that melatonin protects bMECs from LPS-induced inflammatory and oxidant stress damage and provide evidence that melatonin might have therapeutic utility in mastitis.


Subject(s)
Anti-Inflammatory Agents/pharmacology , Antioxidants/pharmacology , Epithelial Cells/drug effects , Lipopolysaccharides/pharmacology , Melatonin/pharmacology , Acute-Phase Proteins/metabolism , Animals , C-Reactive Protein/metabolism , Carrier Proteins/metabolism , Cattle , Cattle Diseases/drug therapy , Cattle Diseases/metabolism , Colony-Stimulating Factors/metabolism , Epithelial Cells/metabolism , Female , Heme Oxygenase-1/metabolism , Interleukin 1 Receptor Antagonist Protein/metabolism , Interleukin-1beta/metabolism , Interleukin-6/metabolism , Lipopolysaccharide Receptors/metabolism , Mammary Glands, Animal , Mastitis/drug therapy , Mastitis/metabolism , Membrane Glycoproteins/metabolism , Signal Transduction/drug effects , Toll-Like Receptor 4/metabolism , Tumor Necrosis Factor-alpha/metabolism
10.
Trends Biotechnol ; 35(7): 579-582, 2017 07.
Article in English | MEDLINE | ID: mdl-28279486

ABSTRACT

An inline progesterone monitoring system that works automatically and provides real-time physiological information about lactating dairy cows for making farm management decisions is not only a novel tool for scientific research but also improves productivity, food safety, animal well-being, the environment, and the public perception of the dairy industry.


Subject(s)
Dairy Products/analysis , Dairying/methods , Food Analysis/methods , Food Safety , Progesterone/analysis , Animals , Cattle
11.
J Poult Sci ; 54(4): 312-318, 2017 Oct 25.
Article in English | MEDLINE | ID: mdl-32908442

ABSTRACT

The aim of this study was to evaluate the potential effect of melatonin on progesterone production by granulosa cells of the Japanese quail. For in vitro experiments, granulosa cells were isolated from pre-ovulatory follicles (F1-F3) when the F1 follicles were predicted to be either immature or mature (at 3-6 or 18-21 h after oviposition, respectively). Granulosa cells were cultured for 12 hwithor without melatonin concentration gradients of 0.0001-100 µg/mL, thereby averting luteinizing hormone (LH) stimulation. The concentration of progesterone in culture medium was measured using an enzyme immunoassay. The expression of melatonin receptor subtypes in granulosa cells from F1 follicles was detected by reverse transcription-PCR. The LH receptor (LHCGR) mRNA level in cultured granulosa cells of the F1 follicles was analyzed using quantitative real-time PCR. Six quails were used in each of four groups for in vivo experiments. Eachgroup received intraperitoneal injection of melatonin (0.67 mg/kg body weight) or mock-vehicle at 3 or 18 h after oviposition, respectively. The birds were decapitated to collect serum 3 hlater (at 6 or 21 h after oviposition, respectively). The serum progesterone level was also measured using an enzyme immunoassay. We observed that melatonin receptor subtypes (Mel-1a, 1b, and 1c) were expressed in the granulosa cells of the F1 follicles of the Japanese quail. Melatonin suppresses the LHCGR mRNA expression in granulosa cells of F1 follicles but does not affect the basal secretion of progesterone in cultured granulosa cells of the F1-F3 follicles. In addition, melatonin treatment has no influence on the serum progesterone concentration at 6 h post-oviposition, but suppresses progesterone level 21 h after oviposition in the Japanese quail.

12.
J Poult Sci ; 54(4): 319-325, 2017 Oct 25.
Article in English | MEDLINE | ID: mdl-32908443

ABSTRACT

The aim of this study was to evaluate the potential of melatonin to protect cultured granulosa cells from the harmful effects of lipopolysaccharide (LPS) in quail. Granulosa cells isolated from Japanese quails were pretreated with or without melatonin (10 or 100 µg/mL) for 12 hand then incubated for 12 hin the absence or presence of 100 ng/mL LPS. The expression of pro-inflammatory cytokines and chemokine was detected by quantitative real-time PCR. The levels of oxidative stress biomarkers (dityrosine and nitrite) were determined by ELISA and the Griess reaction. Cell viability was quantified using an MTT assay. Additionally, the level of progesterone was measured by ELISA. We found that melatonin decreased LPS-induced expression of IL-1ß, IL-6, and IL-8. In addition, melatonin increased the dityrosine level, but suppressed the nitrite level. Finally, melatonin administration increased the viability of LPS-stimulated granulosa cells in vitro. However, progesterone basal secretion was not significantly changed. These results suggest that melatonin protects cultured granulosa cells from LPS-induced inflammatory and oxidative stress damage and provide evidence that melatonin might have therapeutic utility in ovarian follicle infection in Japanese quail.

13.
Reprod Biol ; 16(4): 295-299, 2016 Dec.
Article in English | MEDLINE | ID: mdl-27839674

ABSTRACT

Postpartum uterine health in dairy cows is crucial for the maintenance of good reproductive performance. In order to improve uterine health and reduce puerperal intrauterine infection, 608 Holstein cows received a weekly PGF2α protocol (3 i.m. injections of PGF2α at 7, 14 and 21 d postpartum). For comparison, 593 cows in the control group received injections of sterile saline at the same time. Uterine score at 14 d postpartum, the prevalence of endometritis at 21-27 d postpartum, and subsequent reproduction performance was evaluated. Cows in the treated group exhibited higher tonicity (P<0.05) of the uterus, with less prevalence of endometritis (10.4%, 63/608 vs. 34.6%, 205/593; P<0.001), and required shorter time to the first AI postpartum (67.5±3.4 d vs. 84.4±3.7 d, P<0.05) and to pregnancy (114.5±5.4 d vs. 131.4±5.8 d, P<0.05). In conclusion, the present study demonstrated that uterine health in Holstein cows can be promoted while puerperal infection can be suppressed by this weekly postpartum PGF2α protocol.


Subject(s)
Cattle Diseases/prevention & control , Dinoprost/pharmacology , Endometritis/veterinary , Postpartum Period , Puerperal Infection/veterinary , Uterus/drug effects , Animals , Cattle , Cattle Diseases/diagnosis , Dinoprost/therapeutic use , Endometritis/diagnosis , Endometritis/prevention & control , Female , Puerperal Infection/diagnosis , Puerperal Infection/prevention & control
14.
Theriogenology ; 86(6): 1421-1426, 2016 Oct 01.
Article in English | MEDLINE | ID: mdl-27260509

ABSTRACT

The low efficiency of embryo production in Holstein cows during early lactation presents many challenges for animal production. To improve its efficiency, the outcomes of single GnRH injections 48 hours before each of three cycles of ovum pick up (OPU; weeks 2, 4, and 6) were compared with three cycles of unstimulated OPU (controls; weeks 1, 3, and 5) in 35 Holstein cows during 6 weeks of early lactation (40-80 days postpartum). More total follicle numbers (19.5 vs. 16.0; P < 0.05) but fewer dominant follicles (0.5 vs. 1.4; P < 0.01) were observed by ultrasound, and more cumulus-oocyte complexes were collected in a single OPU in the treatment cycles compared with controls (15.3 vs. 11.5; P < 0.05). The numbers of morphologically "good" cumulus-oocyte complexes graded A and B in the stimulated OPUs were significantly greater than in controls (2.8 vs. 1.7 and 5.8 vs. 4.2, respectively; P < 0.05). Significantly, more oocytes stained positively with brilliant cresyl blue after GnRH treatment compared with the control cycles (13.7 vs. 9.6; P < 0.05). After in vitro fertilization, embryos in the treatment cycles had improved development (P < 0.01) during each developmental stage compared with the controls (9.0 vs. 6.2 two-cell embryos; 4.7 vs. 3.0 four-cell embryos; 3.3 vs. 2.0 morulae; and 3.0 vs. 1.7 blastocysts, respectively). Moreover, there was no significant difference in pregnancy rate of the recipient cows after embryo transfer (57.1% vs. 42.1%; P > 0.05) no matter if the embryos came from the GnRH-treated cycles or not. Thus, GnRH-stimulated OPUs improved the efficiency of embryo production in Holstein cows during early lactation. This novel method for in vitro embryo production should benefit the dairy industry.


Subject(s)
Gonadotropin-Releasing Hormone/administration & dosage , Lactation/physiology , Animals , Cattle , Cumulus Cells/physiology , Dairying , Embryo Transfer/veterinary , Embryonic Development/drug effects , Female , Fertilization in Vitro/drug effects , Fertilization in Vitro/veterinary , In Vitro Oocyte Maturation Techniques/methods , In Vitro Oocyte Maturation Techniques/veterinary , Oocyte Retrieval/veterinary , Oocytes/physiology , Pregnancy , Pregnancy Rate
15.
Pharmacogn Mag ; 10(38): 125-31, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24914277

ABSTRACT

BACKGROUND: The antileukemic activity of hot water extract of plant parts of some Japanese willow tree species grown at different levels of nitrogen were examined. MATERIALS AND METHODS: Water extracts of willow leaves were prepared for this studies in different level of nitrogen nutrition. RESULTS: The extracts obtained from the leaves and stem exhibited anti-leukemic activities prominently. The crude hot water extracts of the young growing parts including apex, matured leaves and stem, killed the blasts of acute myeloid leukemia (AML) cells, (HL60 and NB4) after 48h incubation, however, such desperation was far less in the root extract. Similar to the plant parts, response of extracts obtained from different willow species was not identical; the proportion of dead cells relative to whole cells of the culture medium ranged from 21% to 93% among the species. Leaf extracts obtained from the responsive willow species decreased the live cell percentage and increased the dead cell percentage at higher level of nitrogen nutrition. The mode of desperation of leaf extract treated AML cells in such species appeared to be cell apoptosis as shown by binding with fluorescein isothiocyanate (FITC) -labeled Annexin V. CONCLUSION: Differentiation of alive AML cells continued unabated and apoptosis was poor when extract of an unresponsive species added to the culture medium.

16.
Nat Commun ; 4: 1372, 2013.
Article in English | MEDLINE | ID: mdl-23340412

ABSTRACT

Sexual differentiation leads to structural and behavioural differences between males and females. Here we investigate the intrinsic sex identity of the brain by constructing chicken chimeras in which the brain primordium is switched between male and female identities before gonadal development. We find that the female chimeras with male brains display delayed sexual maturation and irregular oviposition cycles, although their behaviour, plasma concentrations of sex steroids and luteinizing hormone levels are normal. The male chimeras with female brains show phenotypes similar to typical cocks. In the perinatal period, oestrogen concentrations in the genetically male brain are higher than those in the genetically female brain. Our study demonstrates that male brain cells retain male sex identity and do not differentiate into female cells to drive the normal oestrous cycle, even when situated in the female hormonal milieu. This is clear evidence for a sex-specific feature that develops independent of gonadal steroids.


Subject(s)
Brain/physiology , Chickens/genetics , Chickens/physiology , Chimera/genetics , Chimera/physiology , Reproduction/physiology , Sex Differentiation/genetics , Animals , Behavior, Animal , Brain/anatomy & histology , Brain/cytology , Brain/embryology , Chick Embryo , Chickens/blood , Estradiol/metabolism , Female , Gonadal Steroid Hormones/blood , Luteinizing Hormone/blood , Luteinizing Hormone/metabolism , Male , Neurons/metabolism , Neurotransmitter Agents/metabolism , Ovulation , Reproduction/genetics , Semen/metabolism , Sex Characteristics , Sexual Maturation/physiology , Spermatozoa/metabolism
17.
World J Gastroenterol ; 18(27): 3565-70, 2012 Jul 21.
Article in English | MEDLINE | ID: mdl-22826621

ABSTRACT

AIM: To evaluate the inhibitory effects of carbon dioxide (CO(2)) insufflation on pneumoperitoneum and bowel distension after percutaneous endoscopic gastrostomy (PEG). METHODS: A total of 73 consecutive patients who were undergoing PEG were enrolled in our study. After eliminating 13 patients who fitted our exclusion criteria, 60 patients were randomly assigned to either CO(2) (30 patients) or air insufflation (30 patients) groups. PEG was performed by pull-through technique after three-point fixation of the gastric wall to the abdominal wall using a gastropexy device. Arterial blood gas analysis was performed immediately before and after the procedure. Abdominal X-ray was performed at 10 min and at 24 h after PEG to assess the extent of bowel distension. Abdominal computed tomography was performed at 24 h after the procedure to detect the presence of pneumoperitoneum. The outcomes of PEG for 7 d post-procedure were also investigated. RESULTS: Among 30 patients each for the air and the CO(2) groups, PEG could not be conducted in 2 patients of the CO(2) group, thus they were excluded. Analyses of the remaining 58 patients showed that the patients' backgrounds were not significantly different between the two groups. The elevation values of arterial partial pressure of CO(2) in the air group and the CO(2) group were 2.67 mmHg and 3.32 mmHg, respectively (P = 0.408). The evaluation of bowel distension on abdominal X ray revealed a significant decrease of small bowel distension in the CO(2) group compared to the air group (P < 0.001) at 10 min and 24 h after PEG, whereas there was no significant difference in large bowel distension between the two groups. Pneumoperitoneum was observed only in the air group but not in the CO(2) group (P = 0.003). There were no obvious differences in the laboratory data and clinical outcomes after PEG between the two groups. CONCLUSION: There was no adverse event associated with CO(2) insufflation. CO(2) insufflation is considered to be safer and more comfortable for PEG patients because of the lower incidence of pneumoperitoneum and less distension of the small bowel.


Subject(s)
Air , Carbon Dioxide/administration & dosage , Gastroscopy/adverse effects , Gastrostomy/adverse effects , Insufflation , Intestines/pathology , Pneumoperitoneum/prevention & control , Aged , Aged, 80 and over , Carbon Dioxide/adverse effects , Dilatation, Pathologic , Female , Gases , Gastrostomy/methods , Humans , Insufflation/adverse effects , Japan , Male , Pneumoperitoneum/etiology , Time Factors , Treatment Outcome
18.
Gastrointest Endosc ; 74(4): 784-91, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21802678

ABSTRACT

BACKGROUND: Feeding device replacement is often required for long-term maintenance after initial percutaneous endoscopic gastrostomy or jejunostomy placement. Although there are several case reports on serious complications of gastrostomy device replacement, there are few reports of an overall analysis of the complications associated with feeding device replacement. OBJECTIVE: To evaluate the frequency and variety of complications of transcutaneous replacement of feeding devices. DESIGN: A retrospective study. SETTING: Single center: Nishimino Kosei Hospital. PATIENTS: This study involved 363 consecutive patients undergoing a total of 1265 percutaneous gastrostomy or jejunostomy device replacements from March 2000 to September 2010. INTERVENTION: A new replacement device was inserted through the ostomy tract by using an obturator after traction removal of the previous device. Endoscopic treatments were performed in the cases of fistula disruption or hemorrhage. MAIN OUTCOME MEASUREMENTS: Complications and their outcomes. RESULTS: Gastrostomy and jejunostomy devices were replaced 1126 and 139 times, respectively. There were 16 complications (1.3% of total replacements) consisting of 10 cases of fistula disruption caused by misplacement of replacement devices into the peritoneal cavity, 4 cases of hemorrhage, and 1 case each of colocutaneous fistula and device breakage. Anticoagulation or antiplatelet medications were continued in all 4 hemorrhage cases but in only 27 of 347 (7.7%) complication-free cases (P < .0001). There were no replacement-related adverse events that required surgical repair. LIMITATIONS: A single center, retrospective analysis. CONCLUSION: Fistula disruption and hemorrhage were the most common complications associated with device replacement. In patients on anticoagulants, caution is necessary to avoid hemorrhage after replacement. It is also important to verify that the replaced device is located in the GI tract lumen before feeding.


Subject(s)
Device Removal/adverse effects , Endoscopy, Gastrointestinal , Enteral Nutrition , Gastrostomy/adverse effects , Jejunostomy/adverse effects , Aged , Aged, 80 and over , Female , Gastrostomy/instrumentation , Gastrostomy/methods , Humans , Jejunostomy/instrumentation , Jejunostomy/methods , Male , Risk Factors
19.
Clin Nutr ; 30(5): 585-9, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21596460

ABSTRACT

BACKGROUND & AIMS: Trace element deficiencies are known to occur during long-term enteral nutrition feeding. We compared the serum concentrations of trace elements between patients treated with gastrostomy and those treated with jejunostomy. METHODS: Our subjects were 36 patients who underwent percutaneous endoscopic gastrostomy (PEG group) and 23 patients who underwent percutaneous endoscopic jejunostomy (PEJ group) and were maintained with enteral tube feeding for more than one year. The serum concentrations of copper, zinc, selenium, and iron were measured in the two groups. Clinical manifestations and the effectiveness of supplementation therapy against copper deficiency were also investigated. RESULTS: From 6 months after the onset of enteral feeding, the copper concentration of the PEJ group was significantly decreased compared with that of the PEG group (p<0.001). There were no significant differences in the concentrations of zinc, selenium, or iron between the two groups. Severe copper deficiency was observed in 6 patients of the PEJ group and was accompanied with neutropenia and anemia. The copper deficiency was successfully treated in all of these patients by supplementation with 10-40 g of cocoa powder a day which was equivalent to a total daily dose of 1.36-2.56 mg of copper. CONCLUSIONS: Prolonged PEJ tube nutrition tends to result in copper deficiency, and cocoa supplementation is effective for treating such copper deficiency.


Subject(s)
Copper/administration & dosage , Copper/deficiency , Enteral Nutrition/adverse effects , Food, Formulated/adverse effects , Gastrostomy , Jejunostomy , Aged , Aged, 80 and over , Anemia/diet therapy , Anemia/etiology , Cacao/chemistry , Copper/analysis , Copper/blood , Female , Food, Formulated/analysis , Gastrostomy/adverse effects , Humans , Iron/blood , Jejunostomy/adverse effects , Male , Middle Aged , Neutropenia/diet therapy , Neutropenia/etiology , Seeds/chemistry , Selenium/blood , Severity of Illness Index , Time Factors , Zinc/blood
20.
Arerugi ; 60(11): 1550-9, 2011 Nov.
Article in Japanese | MEDLINE | ID: mdl-22270130

ABSTRACT

BACKGROUND: Although clinical management methods for asthma have developed dramatically, it is not sure that the newly-developed methods have come to the attention of all doctors. METHODS: We sent questionnaires to all members of the Gifu Medical Association (general practitioners, pediatricians, and respiratory physicians) in 2000, 2004, and 2010. RESULTS: A majority of doctors felt that the number of asthmatic outpatients (adults and children) had decreased by 2010 compared with 2000. The ratio of the diagnostic/treatment guideline users increased between 2000 and 2010 for management of both adult and pediatric asthmatic patients. The percentages of doctors who prescribed inhaled corticosteroid (ICS) to more than half of their adult asthmatic patients were 46.1% in 2000 and 77.6% in 2010; those prescribing ICS to more than half of their pediatric asthmatic patients were 4.3% and 31.3% in 2000 and 2010, respectively. The percentage of doctors who used a peak flow meter did not drastically increase from 2000 to 2010. DISCUSSION: Our survey indicates that the number of asthmatic patients visiting a clinic or hospital has recently decreased, probably due to the reduced frequency of emergency visits for asthma attacks as a result of the prevalence of ICS and the guidelines. On the other hand, it was revealed that the objective evaluation methods for asthmatic condition have been not widely used. Greater promotion of the usefulness of a peak flow meter and asthma control test (ACT) is considered necessary for the optimum management of asthma.


Subject(s)
Asthma/therapy , Adult , Child , Humans , Japan , Practice Patterns, Physicians'/trends , Surveys and Questionnaires
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