Effects of Dietary Folic Acid Supplementation on Sex Differences in Oriental River Prawn, Macrobrachium nipponense.

To better understand the sex differences in the utilization of folic acid for male and female prawns, Macrobrachium nipponense, three experimental diets with graded folic acid contents (A: 1.22 mg/kg, B: 5.44 mg/kg, and C: 10.09 mg/kg) were provided to prawns for 8 weeks. The experimental study demonstrated that prawns fed diets containing 1.22 mg/kg showed the best values on body weight gain (BWG), specific growth rate (SGR), and individual weight for both males and females. Male prawns fed above 1.22 mg/kg of dietary folic acid significantly decreased the crude protein contents in their bodies (p < 0.05), while no significant differences were observed in females among all treatments (p > 0.05). The protease activity of the hepatopancreas in females was significantly (p < 0.05) improved by a dietary level of 10.09 mg/kg of folic acid. However, the opposite trend was observed in males, with the highest protease activity observed at a dietary level of 1.22 mg/kg folic acid. Increasing dietary folic acid levels did not suppress early maturation but led to an increase in the fecundity of females. Furthermore, prawns fed with 10.09 mg/kg of folic acid exhibited improved tolerance against thermal stress in both males and females. Transcriptome analysis revealed that during thermal stress, the "Oxidative phosphorylation" and "Pantothenate and CoA biosynthesis" signaling pathways were significantly enriched in females, and the "Fatty acid biosynthesis" signaling pathway was significantly enriched in males. The results of this study preliminarily evaluate the differences between male and female M. nipponense in response to different dietary folic acid levels and are helpful in promoting the health and growth of aquaculture production of this species.

Regulatory roles of phytochemicals on circular RNAs in cancer and other chronic diseases.

As novel non-coding RNAs (ncRNAs), circular RNAs (circRNAs) play an essential role in the pathogenesis of many chronic diseases, and the regulation of these functional molecules has become a research hotspot gradually. Within the past decade, phytochemicals were reported to regulate the expression of long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) in various chronic diseases, and more recently, most studies focus on the regulatory roles of phytochemicals on circRNAs. Abnormal expression of circRNAs has been identified in chronic diseases like cancer, heart failure, depression and atherosclerosis, and numerous studies have revealed the modulation of circRNAs by phytochemicals including berberine, celastrol, cinnamaldehyde, curcumin, et al. The expression of circRNAs, such as circSATB2 and circFOXM1, were modulated by phytochemicals, and these regulations further affected cell proliferation, apoptosis, migration, invasion, autophagy, chemosensitivity, radiosensitivity and other biological processes. Mechanismly, the circRNAs mainly functioned as miRNA sponge, subsequently affecting miRNA-mediated regulation of target genes and related cell signaling pathways. In this review, we summarized the impact of phytochemicals on circRNAs expression and biological function, and discussed the mechanisms underlying phytochemicals regulating circRNAs in cancer and other chronic diseases.

One-step removal of harmful algal blooms by dual-functional flocculant based on self-branched chitosan integrated with flotation function.

Harmful algal blooms induce severe environmental problems. It is challenging to remove algae by the current available treatments involving complicate process and costly instruments. Here, we developed a CaO2@PEG-loaded water-soluble self-branched chitosan (CP-SBC) system, which can remove algae from water in one-step without additional instrumentation. This approach utilizes a novel flocculant (self-branched chitosan) integrated with flotation function (induced by CaO2@PEG). CP-SBC exhibited better flocculation performance than commercial flocculants, which is attributed to the enhanced bridging and sweeping effect of branched chitosan. CP-SBC demonstrated outstanding biocompatibility, which was verified by zebrafish test and algae activity test. CaO2@PEG-loaded self-branched chitosan can serve as an "Air flotation system" to spontaneous float the flocs after flocculation by sustainably released O2. Furthermore, CP-SBC can improve water quality through minimizing dissolved oxygen depletion and reducing total phosphorus concentrations.

Polymer-based nanoparticles for chemo/gene-therapy: Evaluation its therapeutic efficacy and toxicity against colorectal carcinoma.

Combination treatment through simultaneous delivery of anticancer drugs and gene with nano-formulation has been demonstrated to be an elegant and efficient approach for colorectal cancer therapy. Recently, sorafenib being studied in combination therapy in colorectal cancer (CRC) attracted attention of researchers. On the basis of our previous study, pigment epithelium-derived factor (PEDF) loaded nanoparticles showed good effect on CRC in vitro and in vivo. Herein, we designed a combination therapy for sorafenib (Sora), a multi-kinase inhibitor and PEDF, a powerful antiangiogenic gene, in a nano-formulation aimed to increase anti-tumor effect on CRC for the first time. Sora and PEDF were simultaneously encapsulated in PEG-PLGA based nanoparticles by a modified double-emulsion solvent evaporation method. The obtained co-encapsulated nanoparticles (Sora@PEDF-NPs) showed high entrapment efficiency of both Sora and PEDF - and exhibited a uniform spherical morphology. The release profiles of Sora and PEDF were in a sustained manner. The most effective tumor growth inhibition in the C26 cells and C26-bearing mice was observed in the Sora@PEDF-NPs in comparison with none-drug nanoparticles, free Sora, mono-drug nanoparticles (Sora-NPs and PEDF-NPs) and the mixture of Sora-NPs and equivalent PEDF-NPs (Mix-NPs). More importantly, Sora@PEDF-NPs showed lower toxicity than free Sora in mice according to the acute toxicity test. The serologic biochemical analysis and mice body weight during therapeutic period revealed that Sora@PEDF-NPs had no obvious toxicity. All the data demonstrated that the simultaneously loaded nanoparticles with multi-kinase inhibitor and anti-angiogenic gene might be one of the most potential formulations in the treatment of colorectal carcinoma in clinic and worthy of further investigation.

Pharmacokinetic properties of wogonin and its herb-drug interactions with docetaxel in rats with mammary tumors.

Docetaxel, frequently used for the treatment of breast cancer, is mainly metabolized via hepatic cytochrome P450 (CYP) 3A in humans and is also a substrate of P-glycoprotein (P-gp). Wogonin has been shown to be able to modulate the activities of CYPs and P-gp, and it could serve as an adjuvant chemotherapeutic agent. However, the impacts of co-administration of wogonin and docetaxel on their pharmacokinetics have not been studied because of a lack of an analytical method for their simultaneous measurement. In the present study, we established an HPLC-MS/MS method for simultaneous measurement of wogonin and docetaxel in rat plasma, and it was then utilized to explore the pharmacokinetics of wogonin and the herb-drug interactions between wogonin and docetaxel after their combined administration in rats with mammary tumors. The rats received 10, 20 and 40 mg/kg wogonin via oral administration, with or without docetaxel intravenously administered at 10 mg/kg, and the plasma concentrations of wogonin and docetaxel were measured using the established and validated HPLC-MS/MS method. The Cmax and AUC0-t of wogonin were proportionally increased in the dose range from 10 to 40 mg/kg, suggesting a linear pharmacokinetics of wogonin. Moreover, the Cmax and AUC0-t of docetaxel and the AUC0-t of wogonin were increased after co-administration (p < 0.05), indicating increased in vivo exposures of both wogonin and docetaxel, which might lead to an increase in not only therapeutic but also toxic effects. Thus the alterations of pharmacokinetics should be taken into consideration when wogonin and docetaxel are co-administered.

[Effect of Osteoking on Bone Mineral Density and Dickkopf-1 Protein Levels in Rabbits with Osteoporotic Fracture].

OBJECTIVE: To explore the effect of Osteoking on bone mineral density (BMD) and serum Dickkopf-1 (DKK-1) protein levels in rabbits with osteoporotic fracture (OPF). METHODS: Totally 45 female Japanese big-ear rabbits were randomly divided into the treatment group, the model group, and the blank control group (as the control group), 15 in each group. Bilateral ovaries were ectomized for 24 weeks in the treatment group and the model group. Their left radial factures were induced after confirmed osteoporosis. Rabbits in the treatment group were administered with Osteoking by gastrogavage, once per two days. Equal volume of normal saline was given to rabbits in the model group. The general BMD and serum DKK-1 protein levels were detected before ovariectomy, at week 24 and 48 after ovariectomy. RESULTS: There was significant difference in the general BMD at week 24 after ovariectomy between the model group and the control group, and it was lower in the model group. Compared with the model group, the general BMD significantly increased and serum DKK-1 protein levels significantly decreased in the treatment group after intervention. Serum DKK-1 protein levels were significantly lower after intervention than before intervention in the treatment group. CONCLUSION: Osteoking could improve the BMD of OPF rabbits, and reduce their serum DKK-1 protein levels as well.

[Post-stroke shoulder-hand syndrome treated with floating-needle therapy combined with rehabilitation training: a randomized controlled trial].

OBJECTIVE: To compare the clinical efficacy in the treatment of post-stroke shoulder-hand syndrome between floating-needle therapy and conventional acupuncture on the basis of rehabilitation training. METHODS: One hundred cases of post-stroke shoulder-hand syndrome were randomized into a floating-needle group and an acupuncture group, 50 cases in each one. The passive and positive rehabilitation training was adopted in the two groups. Additionally, in the floating-needle group, the floating-needle therapy was used. The needle was inserted at the site 5 to 10 cm away from myofasical trigger point (MTrP), manipulated and scattered subcutaneously, for 2 min continuously. In the acupuncture group, the conventional acupuncture was applied at Jianqian (EX-UE), Jianyu (LI 15), Jianliao (TE 14), etc. The treatment was given once every two days, 3 times a week, and 14 days of treatment were required. The shoulder hand syndrome scale (SHSS), the short form McGill pain scale (SF-MPQ) and the modified Fugl-Meyer motor function scale (FMA) were used to evaluate the damage severity, pain and motor function of the upper limbs before and after treatment in the two groups. The clinical efficacy was compared between the two groups. RESULTS: SHSS score, SF-MPQ score and FMA score were improved significantly after treatment in the two groups (all P < 0.01), and the improvements in the floating-needle group were superior to those in the acupuncture group (all P < 0.05). The total effective rate was 94.0% (47/50) in the floating-needle group, which was better than 90.0% (45/50) in the acupuncture group (P < 0.05). CONCLUSION: The floating-needle therapy combined with rehabilitation training achieves a satisfactory efficacy on post-stroke shoulder-hand syndrome, which is better than the combined therapy of conventional acupuncture and rehabilitation training.

Dietary melatonin attenuates age-related changes in morphology and in levels of key proteins in globus pallidus of mouse brain.

The ability of melatonin treatment of aged animals to partially restore the pattern of gene expression characterizing the younger animal has been frequently reported. The current study examines the effect of melatonin upon age-related changes of some key proteins relevant to the aging process. Male B6C3F1 mice, aged 5.5 months and 23.4 months were used as a model for aging and half of each group received a diet supplemented with 40-ppm (w/w) melatonin for 9.3 weeks. Protein components of the globus pallidus were studied including glial fibrillary acidic protein (GFAP), NF-κB, protein disulfide isomerase (PDI), and Nissl staining. Some age-related changes were in an upward direction (GFAP and NF-κB), while others were depressed with age (PDI and intensity of Nissl staining). However, in either case, melatonin treatment of aged mice generally altered these parameters so that they came to more closely resemble the levels found in younger animals. The extent of this reversal to a more youthful profile, ranged from complete (for NF-κB) to very minor (for Nissl staining and PDI). Overall, these findings are in accord with prior data on the effect of melatonin on cortical gene expression and confirm the value of melatonin as a means of retarding events associated with senescence.

Starch derivative-based superabsorbent with integration of water-retaining and controlled-release fertilizers.

Phosphate rock (PHR), a traditional fertilizer, is abundant, but is hard to be utilized by plants. To improve the utilization of PHR, and to integrate water-retaining and controlled-release fertilizers, an agricultural superabsorbent polymer based on sulfonated corn starch/poly (acrylic acid) embedding phosphate rock (SCS/PAA/PHR) was prepared. PHR can be suspended and well-dispersed in SCS/PAA by sulfonated corn starch (SCS). PHR and KOH were mixed in acrylic acid solution to provide phosphorus (P) and potassium (K) nutrients, respectively. Impacts on water absorption capacity of the superabsorbent were investigated. The maximum swelling capacity in distilled water or 0.9 wt.% (weight percent) NaCl solution reached 498 g g(-1) and 65 g g(-1) (water/prepared dry superabsorbent) respectively. Moreover, release behaviours of P and K in SCS/PAA/PHR were also investigated. The results showed that SCS/PAA/PHR possessed excellent sustained-release property of plant nutrient, and the SCS/PAA could improve the P release greatly. Besides, the XPS analysis was employed to study the relationship between PHR and superabsorbent polymer.

Sugarcane bagasse derivative-based superabsorbent containing phosphate rock with water-fertilizer integration.

To improve the water-fertilizer utilization ratio and mitigate the environmental contamination, an eco-friendly superabsorbent polymer (SPA), modified sugarcane bagasse/poly (acrylic acid) embedding phosphate rock (MSB/PAA/PHR), was prepared. Ammonia, phosphate rock (PHR) and KOH were admixed in the presence of acrylic acid to provide nitrogen (N), phosphorus (P) and potassium (K) nutrients, respectively. Impacts on water absorption capacity of the superabsorbent polymer (SAP) were investigated. The maximum swelling capacity in distilled water and 0.9 wt.% (weight percent) NaCl solution reached 414 gg(-1) and 55 gg(-1) (water/prepared SAP), respectively. The available NPK contents of the combination system were 15.13 mgg(-1), 6.93 mgg(-1) and 52.05 mgg(-1), respectively. Moreover, the release behaviors of NPK in the MSB/PAA/PHR were also studied. The results showed that the MSB/PAA/PHR has outstanding sustained-release plant nutrients property.

[Comprehensive therapeutic protocol of electroacupuncture combined with Chinese herbs and rehabilitation training for treatment of cerebral infarction: a multi-center randomized controlled trial].

OBJECTIVE: To evaluate the therapeutic effect of comprehensive therapeutic protocol of electroacupuncture combined with active-blood-and-dissolve-stasis herbs and rehabilitation training for cerebral infarction. METHODS: A multi-center randomized controlled trial was done, three hundred and twenty cases were divided into four groups: electroacupuncture combined with active-blood and dissolve-stasis herbs and rehabilitation training group (group A), electroacupuncture combined with rehabilitation training group (group B), herbs combined with rehabilitation training group (group C) and rehabilitation training group (group D), 80 cases in each group. The following two groups of acupoints were used alternatively in electroacupuncture treatment: the first group including Vasomotor Area, Jianyu (LI 15), Biguan (ST 31), Hegu (LI 4) and Taichong (LR 3); the second group including Motor Area, Quchi (LI 11), Yanglingquan (GB 34) and Shenshu (BL 23). 20 mL Xiangdan injection and 250 mL 5% glucose injection or 250 mL 0.9% sodium chloride injection were used by intravenous drip in herbs treatment once a day. The rehabilitation training was performed by the professional physical therapist. Each group was treated with corresponding treatment protocol. The therapeutic effect was evaluated by index of the mortality or disability rate 3 months after the onset of disease. The intention to treat analysis (ITT) was used in data. RESULTS: The mortality or handicap rate 3 months after the onset of disease of four groups were 17.5% (14/80) in group A, 22.5% (18/80) in group B, 40. 0% (32/80) in group C, and 31.3% (25/80) in group D, respectively. The group A has a best therapeutic effect (vs group C, group D, both P<0.05), and there was no adverse event. CONCLUSION: The combined application of electroacupuncture, active-blood and dissolve-stasis herbs and rehabilitation training is a better treatment for cerebral infarction in clinic.

Authenticating and distinguishing the eight species of traditional Tibetan medicine "Meiduoluomi" by microscopic technique.

Because of the morphological and macroscopic similarity, many species of Erigeron and Aster (Asteraceae) are confusable and usually used under the same name "Meiduoluomi" in traditional Tibetan medicine (TTM). To find an easy, quick, and reliable method to authenticate and distinguish the eight main medicinal plants of these species, the light microscope was used to reveal the morphoanatomic details. The fixed, sectioned, and stained plant materials and epidermis materials were studied by microscopic techniques. The results of the microscopic features are systematically described and illustrated, and comparison parameters are presented. Furthermore, a key to the eight species of "Meiduoluomi" was constructed. Microscopy can be unambiguously used to authenticate and distinguish the eight main species of TTM "Meiduoluomi."

[Effects of electroacupuncture on plasma vasoactive intestinal peptide and substance P in perennial allergic rhinitis patients].

OBJECTIVE: To explore the underlying neuroimmunological mechanism of electroacupuncture (EA) in the treatment of perennial allergic rhinitis (PAR). METHODS: One hundred PAR outpatients were evenly randomized into EA group and medication group. Patients in EA group were treated with EA (5-10 mA, 80-100 Hz, and 30 min of stimulation) of Sphenopalatine ganglion area, Yingxiang (LI 20), Shangyingxiang (EX-HN 8), Yintang (EX-HN 3), supplemented with other acupoints according to syndrome-differentiation (once daily, 10 days being a therapeutic course). Patients of medication group were treated by Cetirizine (10 mg/times, t. i.d, peros). Before and after the treatment, blood samples of the ulnar vein were collected for detecting plasma vasoactive intestinal peptide (VIP) and substance P (SP) contents with radioimmunoassay. RESULTS: After the treatment, of the two 50 cases in EA and medication groups, 20 (40%) and 16 (32%) had an obvious improvement, 28 (56%) and 24 (48%) had an improvement, 2 (4%) and 10 (20%) failed, with the total effective rates being 96% and 80% separately. The therapeutic effect of EA group was significantly superior to that of medication group (P < 0.05). Self-comparison of each group showed that after the treatment, both plasma VIP and SP levels of two groups lowered apparently (P < 0.05, 0.01). Comparison between two groups showed that after the treatment, the content of VIP in EA group was markedly lower than that of medication group, while no significant difference was found between two groups in plasma SP levels (P > 0.05). CONCLUSION: EA can effectively relieve perennial allergic rhinitis patients' clinical symptoms, which is closely related to its functions in lowering plasma VIP and SP levels.

[Effects of electro-acupuncture on electroencephalography in patients with vascular dementia].

OBJECTIVE: To study the effects of electro-acupuncture (EA) on electroencephalography (EEG) in vascular dementia (VD) patients. METHODS: According to the Hasegawa dementia scale (HDS), the severity of 46 VD patients were classified into three grades as gentle, medium and severe, in the same time, they were divided into the EA group (n = 23) and the nimotop group (n = 23) randomly. Changes of EEG in the patients were observed before and after treatment. RESULTS: The degree of normality of EEG in VD patients were positively correlated with the severity of their illness, i. e. the severer VD, the more obvious the abnormal EEG changes. CONCLUSION: EEG can be accessible for evaluating the severity of VD, and the electrical activity of brain in VD patients could be improved by EA therapy.